The AD7865 is a fast, low power, four-channel simultaneous sampling 14-bit A/D converter that operates from a single 5V supply. The part contains a 2.4µs successive approximation ADC, four track/hold amplifiers, 2.5V reference, on-chip clock oscillator, sign...
The AD7865 is a four‑channel, simultaneous‑sampling, 14‑bit analog‑to‑digital converter that operates from a single 5 V supply. It features fast 2.4 µs track/hold acquisition, 2.4 µs conversion per channel, and a high‑speed parallel interface suitable for microprocessors and DSPs. Three input‑range versions are offered: ±10 V/±5 V, 0‑2.5 V/0‑5 V, and ±2.5 V.
The datasheet provides detailed electrical specifications, absolute maximum ratings, pin‑out descriptions, timing characteristics, and ordering information. Key performance figures include 350 kSPS per channel, 115 mW typical power consumption, and 78 dB SNR. Pin functions and hardware/software channel‑selection options are described for flexible integration.
| Resolution | 14 Bits |
|---|---|
| Maximum Sample Rate (single channel) | 350 kSPS |
| Input Voltage Range (AD7865‑1) | +10 V, +5 V |
| Input Voltage Range (AD7865‑2) | 0 V to 2.5 V or 0 V to 5 V |
| Input Voltage Range (AD7865‑3) | ±2.5 V |
The AD7865 can sample four channels simultaneously.